Theory of sound: waveform (wavelength, amplitude, frequency); pitch; Hertz (Hz); decibel level (dB);
sound generator (loudspeaker)
Basics of sound recording: signals; signal to noise ratio; analogue distortion; digital distortion; mono and
stereo; sound recording media; digital audio file formats eg .mp3, .wav, .mid, .ogg, .wma, .aif
Analogue versus digital: comparison of analogue and digital sound; advantages and disadvantages of
production techniques; issues with digitisation of analogue material; quality issues
Applications: interactive media products, eg websites, DVD interfaces, interactive presentations, computer
games, mobile phone content
Use of sound: carrying dialogue; enhancing mood or tone; indicators, eg danger, impending action,
emotion; guiding users; alerts; entertainment, eg streaming music
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